Critical Cone Kit for Halo/Reloader B (Halo Drive Cone Kit) The Halo and Reloader B are the fastest loaders available and have become the standard. Their one fault, however lies in their reliability. We have addressed this issue with the Critical Cone. Our drive cone is made out of Delrin which is very durable and is self lubricating (which promotes smoother operation). Features: -Lightest aftermarket cone available. -Stainless steel pins makes the previously weakest point (spring tab) now the strongest. -Includes a replacement spring made of Delrin and a lifetime guarantee.